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zig: Add cflags_extra option #607

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zig: Add cflags_extra option #607

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10 changes: 10 additions & 0 deletions build.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,8 @@ pub fn build(b: *std.Build) void {
// TODO: support build_cord
const build_tests = b.option(bool, "build_tests",
"Build tests") orelse false;
const cflags_extra = b.option([]const u8, "CFLAGS_EXTRA",
"Extra cflags") orelse "";
// TODO: support enable_docs
const enable_threads = b.option(bool, "enable_threads",
"Support threads") orelse default_enable_threads;
Expand Down Expand Up @@ -153,6 +155,14 @@ pub fn build(b: *std.Build) void {
//"-Wno-long-long",
}) catch unreachable;

if (cflags_extra.len > 0) {
// Split it up on space (' ') and append each part separately to flags.
var tokenizer = std.mem.tokenizeScalar(u8, cflags_extra, ' ');
while (tokenizer.next()) |token| {
flags.append(token) catch unreachable;
}
}

source_files.appendSlice(&.{
"allchblk.c",
"alloc.c",
Expand Down
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